Heat exchange – Radiator core type – Serially connected tube sections
Patent
1987-04-29
1989-01-03
Lazarus, Ira S.
Heat exchange
Radiator core type
Serially connected tube sections
165172, 165181, 165179, F28D 100, F28D 132, F28F 130
Patent
active
047949856
ABSTRACT:
A heat transfer unit includes an elongated finned tubular element bent in a serpentine pattern with the thickness of the wall of the tubular member made greater at return bend portions than at cross portions either by more shallow cutting of the rib material from which the fins are formed at the return bend portions than at the cross portions, or by crimping the tubular member at the return bend portions prior to cutting the fins so that a portion of the rib material from which the fins are cut is compressed inwardly on both sides of the tubular member to increase the wall thickness of tube material at the return bend portions.
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Paulman Roger
Wohrstein Franz X.
Cole Richard R.
Lazarus Ira S.
Peerless of America Incorporated
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